Carbureter for explosion-engines.



Patented May 31, 1904.

y UNIYTED vSTATES PATENT OFFICE.

i RANSOM OLDS, OF DETROIT, MICHIGAN, ASSIGNOR TOOLDS MOTOR WORKS, OF DETROIT, MICHIGAN, A `CORPORATION` OF MICHIGAN.'

CARBURETER FOR. EXPLOSION-ENGINES;

SPECIFICATION forming part of Lettersf'latent No. 761,392, dated May 31, .1904.

Application filed Tune 17, 19Q2.

To all whom it may concern.-

Be it known thatLRANsoM E. OLDs, a citizen of the United States, residing at Detroit,vin

the county of Wayne and State of Michigan,1 have invented certain new and useful Improvei ments in Carbureters forExplosion-Fngines, of which the following is a specification, reference being had thereinr to the accompanying:

drawings.

The invention relates to improvements inl and it is a further'object to obtain a simple cony struction and one which will not easily get out The invention therefore consists in the construction as hereinafter describedand claimed.

In the drawings, Figure 1 is a vertical longitudinal section through the carbureter.v

Fig. 2 is a horizontal section on linea@ m looking from the bottom. l

` A is a hollow casing adapted to be connected y to the induction-pipe of' the engine or directly casing A by registering "iianges C and D, lbolted or otherwise secured to each other.

to the engine-cylinder.

`B is a casing adapted to be connected to the These two casings together forman air-induction conduit. The section A at the pointof juncture with the kcasing B has its area restricted by the internal flange E.

F is a slide-valve arranged in adjacence to the flange E and having-'a port G therein" the plane of the valve F.

- area of said port.

serial No. 112,017. (No model.)

`a` rod vhaving a tapering pointl for engaging with the seat K and passing upward centrally through-'the port H and out through an aperture in the upper wall of the casing A. yThe rod L is also provided with a flange M, surrounding thesame and arranged just above 4Nissan adjustable stop, Vpreferably in the form of a screw, engaging with a lugO upon the casingA andextending in alinement with the rod L in-close proximity to they upper end thereof. i

`I is a'rod slidingly secured in bearings in the casing A and extending parallel to the valve One endof this rod is bent downward vand engages withI an 'aperture in the lprojecting end of thel Valve F, forming a means of operating the latter,

Q is a spring sleeved upon the rod I), one

. end abutting against a stop or collar R there- A on and the other against'the casing A. S is an operating-rod connected with the rodP and extending to a suitable point where l it is under the control of the operator;

`The parts being constructed 'as shown and described, in normal position the tension of the spring Q bearing against the collar R will hold the rod P and valve F in a position where the slot I in the latter is in registration with .the port H, thereby greatly restricting the The rod'L will also normally rest upon the seat K, andy the weight of this rod is preferably sufiicient to counterbalance the hydrostatic pressure of 'oil in the conduit J, which isv supplied from suitable eourlce, such as the tank T, arranged at a higher eve When in the operation of the engine an airsuction is produced by the movement of the piston, an air-current will be drawn through the conduit formed by the casings A and B, which current will be compelled to pass through the restricted passage formed by the slot I in the valve F. "In thus passing through the slot I the current will be directed against the flange M onv the valve-rod L, with the effect that said rod willbe lifted from its seat,

allowing the oil to escape through the conduit J and to be absorbed by the passing air-current. vThe degree of opening of the valve may be regulated to any desired point by an adjustment of the stop N, which limits the upward movement of the rod L.

Whenever it is desired to increase the explosive charge, the operator by bearing upon the rod S will slide the rod P against the tension of the spring Q and will move the valve F so as to register its 4larger opening G parthus introduced into the air-current below the point of greatest restriction and where the suction produced by said current is not as great as in immediate proximity to the valve. The result will be that the amount `of oil drawn from the conduit J when the valve is raised from its seat and when the valve F is in its normal restricted position will not be greater than needed for carbureting the quantity of air which passes through the restricted port I. When, however, the area of the opening of the valve is increased, the distance between the oil-valve Seat and the open-air port is less in proportion to the area of the latter, the eect being the same as the movement of the oil-conduit vnearer to the restricted port. The result is that the quantity of oil introduced into the air-current is quite `accurately proportioned to the volume of `the latter, while the change in the oil-supply is entirely automatie.

It is to be noted that no adjustments are required excepting `that of limiting the throw of the valve-stem L, and this when once set need not be altered. It will be also seen that no adjustable valve is required for controlling the oil-supply. The construction is thus well adapted to be used in automobiles, as the average operator is not a mechanic and will obtain better results Where the adjustment of the oilsupplyis beyond his control. For obtaining the initial charge for the engine the stem of the valve L may be lifted, so as to permit a small quantity of oil to flow from the conduit J into theair-condui-t. In order that this will be distributed and absorbed by the air-current, a conical foraminous diaphragm U is preferably arranged within the casing B, extending from the valve-seat K to the wall of the casing. The oil admitted from the eonduitJ will thus flow upon this diaphragm and will be absorbed by the air-current passing therethrough.

. While I have described a specific construction of parts, it is evident that modifications verses through which an air-current is passed having a restricted passage therein, an oil-conduit opening into said air-conduit adjacent to but not directly in said restricted passage and a valve for further restricting said restricted passage adapted to vary the area thereof and thereby to produce a variable suction of oil into said air-conduit proportional to the quantity of air passing therethrough.

2. A carbureter comprising a conduit ,through which an air-current is passed having a restricted passage therein, an oil-conduit opening into said air-conduit adjacent to but not directly in said restricted passage, a valve for closing said oil conduit adapted to be opened by the air-current in said air-conduit, and a valve for further restricting said restricted passage adapted to vary the area thereof and to thereby produce a variable suction of oil into said conduit proportional to the quantity of air passing therethrough.

3. A carbureter comprising a conduit through which an air-current is passed having a restricted passage therein, an oil-conduit opening into said air-conduit centrally in line with but not directly in said restricted passage and a gate-valve for extending across said restricted passage adapted to further restrict the same variably whereby a variable quantity of oil will be drawn into said airconduit proportional to the quantity of air passing therethrough.

4. A carbureter comprising a casing forming a conduit for the passage of air having a restricted passage therein, an oil-conduit opening into said air-conduit adjacent to but not directly in said restricted passage, a valve for closing said oil-conduit having the stem thereof passing through said restricted passage, a flange on said stem for lifting the same by the pressure of the air-current and a gate-valve for variably further restricting said restricted passage and having a slot through which said oil-valve stem passes in the closed position of said gate-valve adapted to permit the passage of a small quantity of air therethrough.

5. A carbureter comprising a casing forniing a conduit for the passage of air having an angular bend therein and a restricted passage adjacent to said bend, an oil-conduit opening into said air-conduit centrally in line with but not directly in said restricted passage, a valve for closing said oil-passage having its stem passing through said restricted passage and outward through an aperture in the casing, a stop for limiting the movement of said stem, a flange on said stem for operating the valve by the pressure of the air-current, and a gate-Valve for further variably restricting IOO IIO

TIS

said restricted passage and slotted for ythe passage of said stem therethrough.

6. A carbureter comprising a casingforrning an air-conduit having a restricted passage therein, an oil-conduit opening into said airconduit adjacent to but not directly in said restricted passage, a valve for closing said oilconduit adapted to bev Operated by the Inove-l rnent of the current a gate-valve for variably further restricting said restricted passage and means for operating said oil-valve from Without said casing to form the vapor for the initial charge.

7. A carbureter comprising the casings A and B together forming an air-conduit, the internal flange E on the casingA forming a restricted passage H, an oil-inlet pipe in the -ing its stem passing through the passage H and outwardthrough an aperture in the casing, an adjustable stop in line With the end of said stem, the flange M -upon said stern in lthel passage A, the gate-valvel` having the aperture Gr therein and the slot I'for the purpose described.

In testimony Whereofl aiiix my signature inv presence of two Witnesses. v

RANSOM E. OLDS.

Witnesses:

M. B. GDOGHERTY, H. C. SMITH. 

